import java.sql.SQLOutput;

public class TestLine
{
    public static void main(String[] args)
    {
        //创建点
        Point p1=new Point(1,2);
        Point p2=new Point(3,4);
        //创建线段
        Line line=new Line(p1,p2);
        System.out.println(line.info());
    }
}
